That don't sound right. I just ordered Maximum Dinobots 5 and All Hail Megatron 10 from Midtown for next week. Sure that isn't for April 29th?
Maximum Dinobots #5 and AHM #10 came out this week in most comic book stores. A few stores even reported not having them on their list and they still got them.
You should check your comic store now. I know my store got both All Hail Megatron #10 and Maximum Dinobots on Weds of this week. They weren't on the original shipping list for last week because the comics were shipped early to make sure they still arrived on time with the holidays.